54 results about "High-speed grinding" patented technology

The invention discloses a spline shaft high-speed grinding and cooling device and method, and relates to the technical field of grinding and cooling devices.The spline shaft high-speed grinding and cooling device comprises a workbench, a grinding assembly, a clamping and rotating assembly, a conveying assembly and liquid guiding mechanisms, an encircling structure is formed by the two symmetrically-arranged liquid guiding assemblies, and the design that the center extension line of a jet flow opening accurately points to a grinding position is matched; the problem that a traditional fixed nozzle cannot focus on a grinding area is solved, cooling liquid can directionally act on a grinding contact area, and it is guaranteed that grinding points are effectively covered all the time in the spline shaft machining process. By means of the synergistic effect of the spiral liquid guide structure and the high-speed rotation of the spline shaft, cooling liquid is continuously accelerated in the gradually-shrunk flow channel to form high-pressure spiral flow so as to effectively break through an air barrier formed by high-speed rotation on the surface of the spline shaft, and the centrifugal acceleration effect of the spiral flow is combined with the pressurization effect of the gradually-shrunk flow channel of the protective cover. And the spraying kinetic energy of the cooling liquid is greatly improved.

The invention relates to an intermittent oscillation heat pipe grinding wheel for grinding aerospace high-toughness difficult-to-machine materials and a manufacturing method of the intermittent oscillation heat pipe grinding wheel. The intermittent oscillation heat pipe grinding wheel comprises an intermittent oscillation heat pipe pipeline, a liquid working medium, a body and a grinding material layer. Liquid working media are injected into the intermittent oscillation heat pipes, grooves are machined in the front side face and the rear side face of the body in a crossed mode, and the two intermittent oscillation heat pipes are embedded into the grooves respectively and fixed through brazing to form a whole with the body. The intermittent oscillating heat pipe pipeline is formed by bending a group of metal capillary tubes into more than one end-to-end S-shaped closed loop multi-loop, each loop comprises a straight pipe section and an elbow, and a necking is processed on the straight pipe section of each loop close to a condensation section. Under the working condition of high-speed grinding, the necking of the intermittent oscillating heat pipe generates local pressure difference to promote the liquid working medium to form intermittent spring flow and intermittently gush in the oscillating heat pipe, so that the grinding heat of the grinding wheel is quickly dredged and efficiently cooled.

The present invention provides a high-speed grinding method for a single crystal high-temperature alloy turbine blade. According to the minimum high-speed grinding wheel linear speed and the minimum diameter of the grinding wheel, the minimum rotation speed of the grinding wheel shaft is obtained based on the linear speed formula; based on the ratio of the roller to the grinding wheel linear speed and the minimum diameter of the roller shaft, the minimum value of the roller linear speed is obtained, and the minimum rotation speed of the roller is obtained; according to the abrasive parameters and the minimum rotation speed of the grinding wheel shaft, based on the single abrasive grain cutting thickness calculation formula, the initial grinding wheel feed speed is obtained, and multiple tests are carried out based on this and the minimum rotation speed of the roller; the processed single crystal blade is inspected through surface quality detection, the initial grinding wheel feed speed is adjusted, and the final grinding wheel feed speed is obtained. The present application adopts a high-speed grinding process for single crystal blades, and through equipment selection, high-speed grinding wheel selection, processing parameter formulation and surface quality evaluation, the grinding efficiency and surface quality of the single crystal material turbine blade are improved. The grinding efficiency of the present application is improved by more than three times, the occurrence of surface ablation of parts is avoided, and the processing quality of parts is improved.

The utility model discloses a dynamic-static pressure main shaft for a high-speed grinding scene, and particularly relates to the field of dynamic-static pressure main shafts, the dynamic-static pressure main shaft comprises a shell, a motor is fixedly installed on the left side in the shell, the output end of the motor is fixedly connected with a main shaft body, and the left end of the outer side of the main shaft body is connected with the interior of the shell through a rear bearing. The first cooling fin is started through an external power source, the first cooling fin absorbs the temperature of lubricating oil in the refrigeration pipeline, then hot air is exhausted through the cooling fan arranged on the first cooling fin, the refrigeration pipeline is in an S shape, the path of the whole pipeline is long, and therefore the flowing time of the lubricating oil in the refrigeration pipeline is long. The cooling effect of the first cooling fins on the lubricating oil in the refrigeration pipeline is matched, the cooling duration of the lubricating oil can be guaranteed, the lubricating oil output by the pump body can be kept at a low temperature, and therefore the cooling effect of the lubricating oil on the bearing is enhanced, and the continuous and effective cooling effect on the connecting position of the bearing and the main shaft is achieved.

The invention relates to a novel superspeed grinding wheel box spindle structure, and relates to the field of precision machining technology, the novel superspeed grinding wheel box spindle structure comprises a box body, a grinding wheel spindle, a bearing system and a grinding wheel positioning mechanism, the bearing system is integrated with a hybrid bearing, and stable and reliable axial positioning and pre-tightening are provided for the grinding wheel spindle through a fixing sleeve, a pre-tightening spring and a bearing sleeve; and the influence of thermal expansion and cold contraction of the grinding wheel spindle is avoided, and axial locking of the grinding wheel spindle due to abnormal temperature rise can be effectively prevented. The grinding wheel positioning mechanism comprises an elastic positioning sleeve, a compression nut and a fastening screw, automatic centering of the superhard grinding wheel in the mounting and fixing process can be achieved, and the high-rigidity and high-coaxiality clamping effect is achieved. The mounting and positioning precision and reliability of the grinding wheel under the ultra-high-speed working condition can be improved, and the long-term operation stability and machining quality of the grinding wheel spindle are guaranteed.

The present application relates to a kind of intermittent oscillating heat pipe grinding wheel for aerospace high tough difficult-to-machine material grinding and its manufacturing method.The intermittent oscillating heat pipe grinding wheel includes intermittent oscillating heat pipe pipeline, liquid working medium, body and abrasive layer.Liquid working medium is injected into intermittent oscillating heat pipe, the groove is processed on the front and back sides of body, and two intermittent oscillating heat pipes are respectively embedded into the groove and fixed by brazing, forming a whole with the body;Intermittent oscillating heat pipe pipeline is bent by a group of metal capillary tubes into more than one head-to-tail connected serpentine closed loop, each loop includes straight pipe section and elbow, and necking is processed on the straight pipe section of each loop near condensing section.In high-speed grinding condition, the necking of intermittent oscillating heat pipe pipeline generates local pressure difference, promotes the intermittent fountain flow of liquid working medium, and intermittently spouts in oscillating heat pipe pipeline, realizes the rapid heat dissipation and efficient cooling of grinding wheel.

The invention relates to the field of ultra-precision optical grinding machines, and provides an ultra-precision small-caliber optical grinding machine integrated with a polishing function and a machining process of the ultra-precision small-caliber optical grinding machine. The small-caliber optical grinding machine achieves micron-order feeding and single-point grinding through multi-axis cooperative movement, meanwhile, due to the position distribution of a machine tool grinding wheel shaft, the high-speed grinding main shaft and the B-axis hydrostatic pressure rotary table, the torque of the B-axis hydrostatic pressure rotary table can meet the cutting torque formed by grinding force more easily, the precision stability of the machined surface type of an optical part is improved, and the machining precision of the optical part is improved. The problems that strong interference geometric components and thin-wall fragile parts are fragile in the rough grinding process and the polishing process is low in efficiency are solved. The workpiece static pressure main shaft clamps the bar through the clamp with the cavity inside, the workpiece can be cut off after machining, part of the remaining length of the bar in the clamp is pulled out to machine the next workpiece, the problem that a current ultra-precision machine tool cannot achieve small-batch machining through one-time clamping of the optical element bar is solved, and the machining precision and the machining efficiency are improved.

The invention discloses a radial ultrasonic vibration grinding wheel suitable for high-speed grinding and a using method. The grinding wheel comprises a grinding wheel resonance outer ring, a non-contact electric energy transmission device, an ultrasonic transducer, a grinding wheel front cover plate, a grinding wheel rear cover plate and a grinding material layer. Ultrasonic transducers in a longitudinal vibration mode are uniformly mounted on the inner circumferential surface of the resonant outer ring, and power is supplied to the transducers in a non-contact manner, so that the resonant outer ring generates radial ultrasonic vibration in an expansion vibration mode. The abrasive material layer is made of cubic boron nitride or diamond abrasive particles and is fixed to the outer circumferential face through brazing or electroplating, and efficient cutting of a workpiece is achieved. And the grinding force can be effectively reduced and the machining efficiency and the surface quality can be improved by cooperating with rotation and feeding movement of a machine tool spindle. Test results show that the method is suitable for precise grinding of hard and brittle materials and difficult-to-machine materials under the conditions of high speed and large cutting depth.

The invention relates to the technical field of machining process parameter optimization, in particular to a surface quality dynamic optimization method for camshaft non-circular contour high-speed grinding. The method comprises the following steps: collecting a multi-source mixed signal in a camshaft non-circular contour high-speed grinding process; a signal processing method based on WPD-EWT-FastICA is adopted to separate out a source signal component corresponding to the state of the grinding machining process; a high-correlation feature set with high state correlation with the grinding machining process is optimized through ReliefF; dividing state labels; a recognition model based on CNN-LSTM-Attention is trained; a real-time multi-source mixed signal is obtained during machining, and a real-time grinding machining process state is output; and triggering a dynamic response mechanism, updating the multi-objective optimization function, and obtaining an optimal process parameter combination. According to the method, the optimal process parameter combination can be adaptively adjusted in real time, and the surface roughness, the residual stress and the material removal rate are dynamically optimized.

The invention relates to the field of machining modeling, in particular to a camshaft non-circular contour high-speed grinding surface topography dynamic modeling method, which comprises the following steps of: acquiring a mixed signal to obtain a source signal component corresponding to grinding wheel wear; signal features with high correlation with grinding wheel wear are selected to be combined with the grinding wheel abrasive particle wear area to jointly construct an abrasive particle wear online prediction model based on FAW-DELM; measuring the surface appearance of the grinding wheel, setting the grinding particle exposure height to obey normal distribution, calculating the grinding wheel grinding particle exposure height through the real-time grinding wheel grinding particle wear area, dynamically adjusting the mean value of the normal distribution, and combining the measured grinding particle space distribution calculation result to establish a grinding wheel surface appearance dynamic simulation model; establishing a single abrasive particle grinding motion trajectory equation considering vibration; and the grinding surface topography is generated in combination with the grinding wheel surface topography dynamic simulation model and the single abrasive particle grinding motion trajectory equation considering vibration. Dynamic analysis can be carried out, and the accuracy is high.

The invention belongs to the technical field of precision grinding tool manufacturing, discloses a laser processing grinding wheel and a preparation method thereof, and aims to solve the problems that in the prior art, the bonding strength of a grinding material layer and a base body is weak, and harsh grinding requirements such as high-speed grinding, heavy-load grinding and composite material large-engagement synchronous grinding are difficult to meet. A laser machining grinding wheel comprises a grinding wheel base body and a grinding wheel abrasive layer. Inclined array blind holes are formed in the surface of the grinding wheel base body, and the grinding wheel abrasive layer is located on the surface of the grinding wheel base body and in the array blind holes. The raw materials of the grinding wheel abrasive material layer comprise amido modified titanate and phthalonitrile resin. According to the grinding wheel, the grinding material layer containing the phthalonitrile resin is subjected to 3D photocuring forming through the large-focus laser, the blind hole array is fully filled with the high-temperature-resistant, low-shrinkage and high-strength grinding material layer, and the grinding wheel product which is formed by high-strength combination of the grinding material layer and the base body and can be used at the high temperature for a long time is obtained.

The utility model discloses a slow feed powerful grinding high-speed grinding wheel device which comprises a working table, a supporting frame is arranged above the working table, an empty box is fixedly connected above the supporting frame, two grinding wheels are arranged below the supporting frame, an adjusting mechanism is arranged inside the supporting frame, and the adjusting mechanism is connected with the empty box. The adjusting mechanism comprises a raised line arranged outside the support frame; and a sleeve. The utility model relates to the technical field of grinding tools, in particular to a slow-feeding high-speed grinding wheel device capable of powerfully grinding, which realizes the adjustment of the positions of grinding wheels on two sides through the matching among a turntable, a double-end lead screw, a lead screw nut, a pulley, a vertical column, a sleeve and a raised line, and solves the problem that when the existing grinding wheel device works, the positions of the grinding wheels on the two sides are fixed, so that the grinding wheels cannot be fixed. The problems that slow-feeding powerful grinding can only be conducted on the same position of one part, the positions of grinding wheels on the two sides cannot be adjusted, and therefore the working range of an existing grinding wheel device is reduced are solved.

The application provides a whole-blade-disc tip precision milling method, which uses a chamfering milling cutter as a precision cutter. In the precision milling process, the cutting edge of the chamfering milling cutter is tangent to the tip, and the direction of the precision cutter is controlled to be along the milling direction. When the precision cutter rotates, the cutting force is directed towards the blade root rather than the blade side. Therefore, the machined part of the tip has sufficient rigidity, and the precision milling of the tip can be completed based on the chamfering milling cutter. The more complex high-speed grinding method is not needed for the machining of the tip, the machining process of the tip is simplified, and the machining cost is reduced.

The utility model provides a supporting clamp which comprises a front support, a rear support, a sliding assembly and a base. The base is an arc-shaped base stand; the base is provided with a rear linear slideway and a front linear slideway along the diameter of a workpiece; the front support is in sliding connection with the front linear slideway through a sliding assembly; and the rear support is in sliding connection with the rear linear slideway through a sliding assembly. The centerless grinding and supporting device can be suitable for centerless grinding and supporting workpieces of high-precision bearing rings, is accurate in positioning, can ensure the size stability during high-speed grinding, and improves the machining efficiency at the same time.

The utility model discloses a high-speed abrasive drill, which belongs to the technical field of abrasive drills, and comprises an abrasive drill body and a grinding head assembly, the side wall of the front end of the abrasive drill body is provided with a ball, a sliding sleeve and a sleeve spring in a sliding manner; the grinding head assembly comprises a grinding head, a first protective pipe, a front protective cover and a rear protective cover, and an annular groove is formed in the outer side of the rear protective cover; the rear end of the grinding head can be detachably inserted into the grinding drill body; guide pipes are arranged inside two ends of the first protective pipe. By overcoming the elastic force of the spring, the sliding sleeve slides backwards, and the grinding head assembly and the grinding drill body can be conveniently and rapidly disassembled and assembled; after the grinding head assembly and the grinding drill body are inserted in place, the sliding sleeve slides forwards, the balls are squeezed inwards and clamped into the annular groove, and reliable installation of the grinding head assembly and the grinding drill body is achieved. The guide pipes at the two ends can prevent the grinding head from making direct contact with the first protective pipe, heat generated by relative friction is effectively reduced, the design diameter of the grinding head is effectively increased, and the grinding head is prevented from being broken. The overall structure is simple, implementation is easy, and practicability is good.

This utility model relates to the field of machining equipment technology, specifically to a bar stock rough grinding device, comprising a base 1, a base 2, an electric slide 1, an electric slide 2, a grinding wheel spindle, a grinding wheel, and a clamping assembly. Base 1 is located on the left side of base 2. Electric slide 1 and electric slide 2 are respectively mounted on base 1. The grinding wheel spindle is mounted on electric slide 2. The grinding wheel drive assembly is located behind the grinding wheel spindle and is connected to the grinding wheel spindle via a transmission mechanism. The output shaft of the grinding wheel spindle is connected to the grinding wheel. The clamping assembly for holding the bar stock is fixedly mounted on base 2. Through the cooperation of a synchronous follower bracket and sliding frame, etc., it provides stable support for the bar stock combining dynamic and static elements, significantly improving the stability of the bar stock during high-speed grinding. It solves the problem of workpiece displacement caused by vibration or impact in traditional equipment, ensuring machining accuracy and surface quality.

This invention relates to an intelligent control device and method for temperature rise of guideways in CNC gantry grinding machines. The device comprises several thermally symmetrical and parallel V-shaped and planar guideways A on the machine bed. Each V-shaped and planar guideway A section is equipped with an independent PLC intelligent temperature control system and structural device. This invention solves the technical problems of guideway deformation and distortion caused by sliding friction and heat expansion, as well as the related technological challenges. It enables real-time and accurate detection and intelligent control of the temperature rise of each guideway within the grinding stroke, avoiding the problem of thermal deformation and distortion caused by differences in frictional force due to the different structural forms of the V-shaped and planar guideways. This improves the linear and planar accuracy and stability of the worktable movement, and also solves the prominent technical problems of straightness, flatness deviations, and grinding marks caused by long-term continuous high-efficiency grinding. This effectively improves the accuracy and efficiency of CNC gantry grinding machines in long-term continuous high-speed grinding of large key parts guideways.

The invention relates to the technical field of abrasive tools, and discloses a high-speed grinding wheel and a high-speed grinding wheel preparation method. The high-speed grinding wheel comprises a base body and a grinding material layer. The grinding material layer is arranged on the peripheral surface of the base body and is fixedly adhered to the base body; the grinding material layer comprises grinding particles, a binding agent and fibers / whiskers; and the fibers / whiskers are arranged in a radial manner. Therefore, the radial strength of the grinding material layer of the grinding wheel is remarkably improved through the directional enhancement technology, the performance bottleneck caused by insufficient strength of a traditional grinding wheel under the high-speed or ultra-high-speed grinding working condition is broken through, reliability is high, and the service life is prolonged.

The application belongs to the field of abrasive tool abrasive processing, and particularly relates to a ceramic grinding wheel wax infiltration process. The ceramic grinding wheel wax infiltration process is realized by using a wax infiltration device; the wax infiltration device comprises a wax infiltration pot A, a wax infiltration pot B, and a wax infiltration pipeline capable of connecting the wax infiltration pot A and the wax infiltration pot B. The process is used to infiltrate a wax liquid with good fluidity into the pores of the grinding wheel by vacuumizing, and in the high-speed grinding process of the prepared grinding wheel, a large amount of grinding heat is continuously generated, and after the pores of the grinding wheel are filled with the wax, the grinding heat caused by the grinding simultaneously acts on the workpiece and the wax, a large amount of grinding heat is taken away by the melting and gasification of the wax, and the workpiece is prevented from being burnt; meanwhile, the melted wax liquid acts on the grinding area, so that an adsorption film is formed between the grinding wheel and the workpiece, and the adsorption film plays a lubricating and rust-proof role and improves the grinding quality of the workpiece. The wax infiltration process is easy to popularize and apply in the abrasive tool industry and the processing industry.

The invention discloses a grinding process of a solid-state battery roller, and relates to the technical field of solid-state battery roller machining. In the grinding treatment process, molten or bonded ceramic chips covering the surface of the diamond grinding wheel in the grinding process are separated and cleaned through the cleaning assembly, the cleanliness of the surface of the diamond grinding wheel is guaranteed, scratches, burns or microcracks are avoided, and then the attaching precision during subsequent battery layer pressing is guaranteed; in the cleaning process, along with the increase of the rotating speed of the driving shaft and the diamond grinding wheel, the blowing head continuously moves close to the normal direction of the diamond grinding wheel, the penetrating power of airflow to abrasive particle gaps can be enhanced through angle changes, airflow interference caused by high-speed rotation is counteracted, deep blockages are more accurately blown away, and the service life of the diamond grinding wheel is prolonged. The cleaning effect is matched with the cutting requirement of high-speed grinding, and the machining stability is maintained.

The utility model discloses a high-speed grinding wheel for glass processing, and relates to the technical field of glass processing. Comprising a grinding wheel seat and a grinding wheel mounted at the top end of the grinding wheel seat and used for grinding. The outer cambered surface of the grinding wheel seat penetrates through the inner cavity of the grinding wheel and is provided with a plurality of groups of dewatering ports at equal radian, and the inner wall of the positioning bottom plate is provided with a plurality of groups of water distributing grooves corresponding to the dewatering ports. According to the high-speed grinding wheel for glass processing, through collaborative optimization of materials, structures and functions, the glass processing efficiency and quality are remarkably improved. By adopting the design of the high-strength diamond material, the silicon carbide and the ceramic abrasive, the cutting hardness and the thermal conductivity are guaranteed during high-speed operation, the stress concentration problem is relieved, and the overall service life of the grinding wheel is prolonged. Rapid circulation and throwing-out of the cutting fluid are achieved, the grinding temperature is effectively reduced, glass edge breakage or burning is avoided, and the surface smoothness under 12 m / min high-speed machining is ensured.

The invention belongs to the technical field of grinding devices, particularly relates to a rotor profile grinding device for a double-screw air compressor, and provides the following scheme aiming at the problems that in the prior art, scrap iron and dust residues are easily caused, self-adaptive adjustment cannot be performed according to the blockage condition of a filter screen, nozzle positioning deviation is easily caused, and continuous and accurate angle positioning is difficult to achieve. Comprising a workbench, supporting legs are fixedly mounted on the left side and the right side of the bottom of the workbench, a mounting box is fixedly mounted at the top of the workbench, a machining block is fixedly mounted on the left side of the mounting box, a first hydraulic cylinder is arranged at the top of the machining block, a first driving motor is arranged on an output shaft of the first hydraulic cylinder, and a grinding wheel head is fixedly mounted on an output shaft of the first driving motor; according to the high-speed grinding device, scrap iron splashed during high-speed grinding can be rapidly sucked away, self-adaptive adjustment can be achieved according to the blocking condition of the filter screen, the nozzle can be adjusted according to the position of the adjusting block, and angle positioning can be continuously and accurately conducted.

The invention relates to the technical field of grinding wheel state detection, in particular to a high-speed grinding wheel state recognition and detection method based on an INOA-SVM model, and the method comprises the following steps: S1, obtaining an original vibration signal, and carrying out the wear division; s2, data processing of the original vibration signals; s3, an INOA-SVM model is constructed and verified; and S4, identifying and detecting the wear state of the high-speed grinding wheel. By processing the vibration data of the high-speed grinding wheel, complex original vibration data can be decomposed into simple signals for iteration, non-grinding vibration can be eliminated, meanwhile, the recognition and detection efficiency of the grinding state recognition and detection model can be improved, the SVM model is optimized through the INOA model, and the recognition and detection efficiency of the grinding state recognition and detection model is improved. Therefore, the grinding state identification and detection model jumps out of local convergence, and the grinding state identification and detection model has high convergence speed and high stability, so that the accuracy and the stability of high-speed grinding wheel state identification and detection are improved.

The application discloses a kind of diamond composite pick high-speed grinding repair device, it is related to diamond composite pick grinding technical field, including workbench, workbench upper end is equipped with sliding slot, the sliding slot inner wall slidingly connected with stroke seat;Grinding mechanism, the grinding mechanism includes the groove being equipped in the upper end of stroke seat, the groove inner wall slidingly connected with moving block, the moving block upper end is fixedly connected with grinding table, the grinding table upper end is symmetrically rotatably connected with two installation shafts, two The sidewall of installation shaft is fixedly connected with swing bar, the swing bar upper end is rotatably connected with tool holder, the tool holder side wall is fixedly connected with blade, the stroke seat upper end is fixedly connected with two straight guide rails by fixed shaft.The present application can drive the blade to travel along the shape of diamond composite pick by starting servo motor, so as to grind it, can realize the rapid grinding repair of diamond composite pick, compared with artificial grinding, more efficient.

A heat dissipation type thick grinding wheel for grinding a blade of a plate shearing machine belongs to the technical field of grinding, a through hole is formed in the center of the grinding wheel, a heat dissipation ring is arranged in the grinding wheel and filled with paraffin-based phase change materials to absorb heat, a groove is formed in the inner surface of the heat dissipation ring, inclined heat dissipation fins are arranged in the heat dissipation ring, and the surface of the heat dissipation ring is coated with a ceramic coating; a temperature sensor is arranged in the fixing block, cooling fins are arranged on one side of the cooling ring, cooling holes are formed in the surface of the heat conduction block, reinforcing ribs are distributed on the surface of the cooling ring, an adjustable counterweight groove is formed in the surface of the fixing block, and the grinding wheel and the cooling ring are in bolted connection through a through hole and a positioning hole to ensure concentricity. The heat conduction blocks and the heat dissipation fins accelerate heat discharge, material deformation is prevented, the heat dissipation fins are obliquely arranged, airflow disturbance is enhanced, the heat dissipation efficiency is improved, the heat dissipation fins and the heat conduction holes form airflow channels, further heat dissipation is achieved, the reinforcing ribs improve the deformation resistance, the balance weight grooves guarantee the high-speed rotation stability, the overall structure is compact, heat dissipation is efficient, and the high-speed grinding machine is suitable for high-speed grinding machining.

The gantry type intelligent milling and grinding all-in-one machine comprises a magnetic disk arranged on an X-axis lead screw transmission mechanism, a base assembly arranged below the X-axis lead screw transmission mechanism, a portal frame arranged on the base assembly, a grinding mechanism and a milling mechanism, wherein the grinding mechanism and the milling mechanism are respectively arranged on the portal frame; the base assembly comprises reinforcing ribs arranged on the two sides of the base respectively. The high-speed grinding machine is stable in operation, and does not vibrate even when a workpiece is ground at a high speed, so that the machining precision of the workpiece and the smoothness of the ground workpiece are not influenced, the smoothness of the surface of the workpiece ground by the high-speed grinding machine is high, and the service life of the workpiece is prolonged. The grinding spindle has the advantages of being high in grinding efficiency, high in grinding precision and good in grinding effect, and the problems that a grinding wheel with the width larger than 100 mm cannot be installed on a grinding spindle in traditional milling and grinding equipment due to insufficient rigidity, and two or more Z-axis machine heads are not suitable for being installed on a base in a traditional gantry type machine tool due to insufficient rigidity are solved.

The present invention relates to an asymmetric diameter oscillating heat pipe grinding wheel and a manufacturing method and application thereof. The structure is mainly composed of three parts, namely, a grinding wheel front end cover, an oscillating heat pipe substrate and a grinding wheel rear end cover, which are laser welded into an integrated structure. The front and rear surfaces of the oscillating heat pipe substrate are staggered with oscillating heat pipe flow channels. The oscillating heat pipe flow channels are multiple single-loop asymmetric diameter structures connected end to end. The structure can utilize different diameter structures to form different pressure gradients inside the flow channel, provide additional pressure difference for the flow of internal working fluid, and promote the internal working fluid of the oscillating heat pipe to form a stable unidirectional circulation motion. The asymmetric diameter oscillating heat pipe grinding wheel can achieve efficient heat transfer performance and working stability under high-speed grinding conditions.

The utility model discloses a low-cost quick trimming device for a circular cover body, which relates to the technical field of machining, and comprises a bracket and a pressure plate which are used for clamping a blank piece, the bracket and the pressure plate are both rotatable, a cutting machine is arranged on one side of the bracket, and the position of a cutting knife on the cutting machine corresponds to the position of the blank piece. The aramid composite material cutting device can solve the problem that the cutting edge of an aramid composite material is rough, a high-speed grinding mode is adopted for cutting, and the edge of a cut product is neat and free of burrs.

The present application relates to the technical field of machining process parameter optimization, and particularly relates to a surface quality dynamic optimization method for camshaft non-circular contour high-speed grinding; the method comprises the following steps: collecting multi-source mixed signals in the camshaft non-circular contour high-speed grinding process; separating out source signal components corresponding to the grinding process state by using a signal processing method based on WPD-EWT-FastICA; selecting a high-correlation feature set with high correlation with the grinding process state by using ReliefF; dividing state labels; training a recognition model based on CNN-LSTM-Attention; acquiring real-time multi-source mixed signals during processing, and outputting real-time grinding process states; triggering a dynamic response mechanism, updating a multi-objective optimization function, and acquiring an optimal process parameter combination; the method can adaptively adjust the optimal process parameter combination in real time, and dynamically optimize surface roughness, residual stress and material removal rate.

The invention relates to an inner-cooling brazed grinding wheel capable of efficiently transporting cutting fluid and an operation method of the inner-cooling brazed grinding wheel. The grinding wheel comprises a metal matrix, a brazed abrasive layer and an inner-cooling runner system. The metal base body is divided into an upper base body and a lower base body, the brazing abrasive material layer is brazed to the peripheral face of the metal base body, the inner cooling runner system is integrated in the metal base body and composed of an annular runner and radial runners, the annular runner surrounds the center of the grinding wheel, and the radial runners evenly extend from the annular runner to the edge of the grinding wheel. The radial flow channels are arranged to be of a double-U-shaped structure and an arc-shaped structure respectively, and a micro-groove backflow prevention structure is arranged in the arc-shaped structure flow channel. In the working process, cooling liquid is introduced into the inner cooling flow channel system by means of the rotating shaft of the upper base body, the cooling liquid is distributed to the radial flow channel through the annular flow channel and then conveyed to the position near a grinding wheel grinding area, and accurate and efficient cooling of the grinding area is achieved through orderly guiding of the cooling liquid. Through the backflow prevention and multi-stage flow distribution structure, the supply uniformity and the cooling efficiency are improved, and the device is suitable for high-speed grinding machining scenes.